SYNODONTIS. 



365 



processes pointed. Humeral process much longer than broad, feebly keeled, sharply 

 pointed, extending as far back as the occipito-nuchal process, or not quite so far. 

 Skin villose on the sides of the anterior part of the body. Dorsal fin with I 7 rays, 

 the spine strong, straight or feebly curved, smooth in front, serrated behind, two-thirds 

 to once the length of the head. Adipose dorsal fin three and a half to four times 

 as long as deep, once and one-third to twice and one-third as long as its distance from 

 the rayed dorsal. Anal fin rounded, with 11 or 12 rays, 7 or 8 of which are branched. 

 Pectoral spine as long as or a little shorter than the head, rather strongly serrated on 

 the outer edge, very strongly (10 to 15 serrae) on the inner edge, not reaching the 

 ventral fin. Latter rounded, not reaching the anal fin. Caudal fin deeply forked, 

 upper lobe slightly the longer. Caudal peduncle a little longer than deep. 



Dark brown above and beneath, with some lighter, yellowish-brown marblings 



Measurements (in millimetres). 



Total length (without caudal) 



Greatest depth 



Length of head , 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Width of mouth 



Maxillary barbel 



Outer mandibular barbel 

 Inner mandibular barbel 



Length of dorsal spine 



Basal length of dorsal fin ... . 



„ „ adipose fin . ■ 



Greatest depth of adipose fin 



Length of pectoral spine . . . . 



1. 



2. 



3. 



4. 



5. 



132 



123 



105 



90 



70 



31 



33 



28 



23 



19 



36 



35 



29 



25 



19 



28 



29 



23 



20 



14 



13 



13 



11 



9 



7 



8 



7 



7 



5 



4^ 



16 



16 



13 



12 



8 



10 



9 



9 



7 



5 



44 



37 



47 



35 



25 



9 



24 



26 



19 



14 



16 



17 



14 



11 



7 



30 



31 



28 



23 



17 



18 



18 



15 



13 



10 



32 



30 



24 



21 



15 



8 



8 



7 



6 



4 



32 



32 



29 



23 



18 



1. Buganga. — Degen. 



2. L. Victoria. — Sir H. Johnston. 3-5. Bunjako. — Degen. 



